Flowmaster's Scavenger Series Elite long tube headers are designed to replace the restrictive factory cast iron manifolds. These high quality headers are manufactured from stainless steel and are ceramic coated for maximum durability. They feature 1-3/4 in. primary tubes, 3/8 in. thick flanges and incorporate Flowmaster's popular 3 in. ball flange collector connections, ensuring a leak free installation. Scavenger Series long tube headers deliver maximum performance and are suited to the enthusiast who wants the best. Like all Flowmaster products, the benefits include improved throttle response, power and engine efficiency. Designed for an easy fit, these headers include gaskets and necessary hardware for easy installation. Note 1 - will not fit Saginaw close ratio with 825 power steering box. Note 2 - big block frame stands and motor mounts must be used to ensure proper engine location and header fit. Note 3 - will fit Detroit speed & engineering front sub frames with rack and pinion steering. Note 4 - does not fit with Powerglide transmission. Note 5 - does not fit column shift automatic transmission for Camaro. Note 6 -this product is legal only for off-highway use (except in California or states that have adopted California emission standards), racing use or for use on pre-emission controlled motor vehicles/motor vehicle engines (pre-1966 domestic vehicles certified to California standards, pre-1968 domestic vehicles certified to federal standards and all pre-1968 foreign vehicles), per the application guide. Stainless Steel Construction Ball & Socket Collector Connections Dyno tuned for maximum performance High Temperature Ceramic Coating Fits 1967 to 1974 Camaro, 1965 to 1972 Chevelle and El Camino, 1968 to 1974 Chevy II and Nova, 1970 to 1974 Monte Carlo with a 396 to 502 cubic inch displacement big block V8 engine, long tube headerProduct Description: 67-74 Camaro, 65-72 Chevelle/El Camino, 68-74 Chevy II/Nova, 70-74 Monte Carlo, 396-502 BB Engine, V8, Long Tube Header, 1-3/4"" Primary, 3" Ball-Flange Collector, 16 Gauge Tubing, 3/8" Flange, Silver Ceramic Coating, 409S Stainless SteelPit Stop USA offers Flowmaster Headers - 1967-74 Camaro - Stainless Steel - BB 1-3/4 814111 at low everyday prices. Be sure to check out all our products from Flowmaster including Flowmaster BB Chevy Headers, Flowmaster Chevrolet Camaro (1st Gen) Headers, Flowmaster Chevrolet Chevelle Headers, Flowmaster Chevrolet El Camino Exhaust, Flowmaster Chevrolet Monte Carlo Exhaust and Chevrolet Nova Headers.